IMAGE PROCESSING METHOD WITHOUT PARAMETERS

摘要

The aim of the invention is to provide a method that increases the discernibility of fine structures in an input image and that suppresses noise. Said method comprises the following steps: calculation of a Fourier-transformation I(k) of the input image; calculation of a scaled power spectrum Psk(k) from the Fourier transformation; calculation of a noise function R(k), the following equation R(k)=Psk(k) for ∥k∥>ks being true for the higher frequencies k of said function above a predetermined threshold frequency ks; calculation of a differential function D(k)=Psk(k)−R(k); calculation of a filter function according to F(k)=α ∥k∥ D(k); multiplication of the Fourier transformation I(k) with the filter function F(k) and subsequent execution of an inverse Fourier transformation (30) for calculating a reconstructed image Ir(r).